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Cybersécurité

Cloudflare Workers Spectre Attack Leaks JWT From Co-Located Worker at 12 Bits/Second

Cybersecurity researchers have disclosed details of a remote Spectre attack against Cloudflare Workers that leaked a JSON Web Token (JWT) from a co-located Worker in the production environment at up to 12 bits per second, 360 times the rate of an earlier attack demonstrated in 2021. The end-to-end experiment used an attacker Worker and a victim Worker controlled by the…

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Cybersécurité

Hackers compromise 14,500 Dahua web cameras in 35-day campaign

In a large-scale campaign that researchers dubbed CameraSwarm, hackers compromised more than 14,500 Dahua IP cameras mostly in Ukraine and Russia. [...]

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Cybersécurité

OpenAI Pauses Frontier RL Training as It Tightens Defenses Against Unsafe AI Behavior

OpenAI on Tuesday revealed that it paused reinforcement learning (RL) training for its latest artificial intelligence (AI) models for two weeks while it shored up additional defenses and increased the scope of its monitoring to avert another Hugging Face-like incident. "As models become more capable, the risks associated with developing and testing them internally also grow,"…

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Cybersécurité

US warns of AI-powered attacks on Siemens PLCs in critical infrastructure

U.S. cybersecurity agencies warn that threat actors are using AI-generated scripts to exploit Siemens S7 Series programmable logic controllers (PLCs) in U.S. critical infrastructure. [...]

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Cybersécurité

US charges Iranian hackers over $3.4 billion intellectual property theft

The U.S. has charged 17 Iranians, alleged members of a hacking-for-hire company called Mabna Institute, involved in years-long operations that stole data from American organizations. [...]

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Cybersécurité

Password spraying attacks surge 155x as hackers exploit MFA gaps

Huntress observed a 155x increase in password spraying attacks in H1 2026, including a campaign that generated more than 81 million login attempts in two weeks. The attacks exploited legacy authentication and gaps in MFA policies that left some login flows unprotected. [...]

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